Catch spouse getting up, leaving last part of newspaper (6)
I believe the answer is:
entrap
'catch' is the definition.
(to entrap is to catch with a trap)
I cannot understand how the rest of the clue works.
(Other definitions for entrap that I've seen before include "Take" , "Catch like parent" , "Lure into danger" , "Parent (anag)" , "decoy" .)